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प्रश्न
State the main function of the Suspensory ligament of the eye
उत्तर
Suspensory ligament of the eye – It holds the lens in position.
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संबंधित प्रश्न
Explain how the human ear works.
Explain the following:
Mechanism through which a sound produces a nerve impulse in the inner ear.
Lightning and thunder take place in the sky at the same time and at the same distance from us. Lightning is seen earlier and thunder is heard later. Can you explain?
Given below is a representation of a kind of pollution. Study the same and answer the questions that follow
(i) Name the kind of pollution.
(ii) List any three common sources of this pollution.
(iii) Mention three harmful effects of this pollution on human health.
(iv) Explain the term ‘Pollutant’.
(v) Name two soil pollutants
find odd one from following: Malleus, iris, Stapes, Incus.
Given in the box below are a set of 14 biological terms. Of these, 12 can be paired into 6 matching pairs. Out of the six pairs, one has been done for you as an example.
Example : endosmosis - Turgid cell.
Identify the remaining five matching pairs :
| Cushing’s syndrome, Turgid cell, Iris, Free of rod and cone cells, Colour of eyes, Hypoglycemia, Active transport, Acrosome, Addison’s disease, Blind spot, Hyperglycemia, Spermatozoa, Endosmosis, Clotting of blood. |
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
Semi-circular canals are concerned with static (positional) balance.
Where is the oval window located? Briefly mention its function.
How could you convince a small child that when you speak, it is not necessary for air to travel from you mouth to the ear of listener?
The diagram alongside represents the structure found in the inner ear. Study the same and then answer the questions that follow:
(i) Name the parts labelled A, B, C and D.
(ii) Name the parts of the ear responsible for transmitting impulses to the brain.
(iii) Name the part labelled above which is responsible for:
1. Static equilibrium. 2. Dynamic equilibrium. 3. Hearing
(iv) Name the audio receptor cells which pick up vibrations.
(v) Name the fluid present in the inner ear.
Complete the following sentence with appropriate word :
________ is the organ of balance and hearing in the body.
Given below is the diagram of the human ear. Study the diagram and then answer the questions that follow:
(i) What role does the eardrum play in hearing?
(ii) What common term is given to the parts labeled A, B, and E?
(iii) Would there be any difference if these three parts mentioned in (ii) above were replaced by one by one? Why?
(iv) Give the biological term for the parts labeled C and D.
(v) Name the fluid which fills the parts mentioned in (iv) above.
(vi) State the functions of the ear.
Mention, if the following statement is True or False
The part of ear associated with balance is the cochlea.
Choose the Odd One Out:
Complete the following sentence with appropriate Word
The sequence of ear ossicles of vertebrates starting from the tympanum is:
Assertion: Human beings Cannot hear infrasonic sounds.
Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.
List the causes of noise pollution.
The eardrum is known as ______.
The median canal of cochlea is filled with ______.
The figure given below shows the principal parts of a human ear. Study the diagram and answer the following questions.
 |
- Label the parts 1 to 8.
- State the role of parts 6, 7 and 8.
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